The default version of Docker was switched to 1.13 in #1059. This
change also bumped ubuntu from installing docker-engine 1.13.0 to
1.13.1. This PR updates os families which had 1.13 defined, but
were using 1.13.0.
The impetus for this change is an issue running tiller 1.2.3 on
docker 1.13.0. See discussion [1][2].
[1] https://github.com/kubernetes/helm/issues/1838
[2] https://github.com/kubernetes-incubator/kargo/pull/1100
This will allow to use '-e docker_version=1.12' in ansible playbook
execution. It's also backward-compatible and will work with floating
docker_version format in custom yaml files.
Closes#702
